Join Date: Oct 2007
Location: Catania, Sicily(CTA)/South Jersey (PHL)/Houston(IAH)/Red Stick, La.(BTR)/airborne in-between
Programs: United Plat (1MM), AA ExecPlat, ITA/AZ Freccia, Hilton Diam, Bonvoy Gold, Hertz Prez, IHG gold
Posts: 3,859
If you have not used one of the others for recent past entry to the US and are applying for a new ESTA, I would suggest using the one that matches your place of birth (presuming you have that citizenship and it is ESTA eligible) or secondly matches where you reside/spend most of your time as a resident.
As others noted there should be no problem with any of them if they are all ESTA eligible but I suggest those two for several reasons and will leave it at that.
Five is as good haul. I have only meet a few five and sixers :-: